Drama

[Betrayed by the world's strongest hero, he died in the jaws of an Abyssal Dragon. But instead of hell, he woke up ten years in the past—on the very day the apocalypse began!]
    In his past life, Min-jae was the ultimate “shield-bro.” He possessed a garbage F-Rank talent, Hard Skin. He served as a human meat-shield for Choi Sun-woo, the world’s number-one hero. But at the final dungeon, Sun-woo betrayed him, kicking him into a dragon’s mouth just to open a Divine Chest.
    “Your trash talent has finally found its use, Min-jae. Die for my ascension!”
    Instead of dying, Min-jae transmigrated back to the day the Global Descent began.
    This time, he isn't going to be anyone's punching bag. Right as the global system judges him as trash-tier once more, a golden interface overrides his vision:
    【Ding! Cosmic Cheat System loaded successfully.】
    【Hidden Evolution Path Found for Talent 'Hard Skin'!】
    【Evolving to Rank-SSS: 'Eternal Vajra Deity Body'!】
    [Rank-SSS Effect: Total immunity to all physical attacks. Reflects 50% of all incoming damage back to the attacker as True Damage!]
    Global geniuses brag about their S-Rank fire spells? One punch from them, and they explode from their own damage.
    Ancient gods look down on humanity? Min-jae just stands there, letting them hit him until they kill themselves.
    With ten years of future knowledge and an unbeatable, overpowered talent, Min-jae begins his ruthless march to the top.
    To the gods who see humans as entertainment: Prepare to be hunted.
    To the hero who betrayed him: Prepare to get your face slapped!
    i (author) hope you like the story and show some support to it .
    What to Expect:
    * Overpowered (OP) Protagonist from the very start.
    * Ruthless Main Character (No mercy to enemies, no naive hero complex).
    * Insane Dopamine Loops and satisfying face-slapping.
    * Kingdom Building and hidden dungeon raiding.